I have two CZs with the dove tail mounts and after using the CZ rings on my .223 I found that the flat screw slots on the CZ rings were not easy to torque. I decided that I would go with Burris Signature rings with the plastic inserts and Torx screws on the rings for my CZ 550 in .30-06. You can get them in the dove tail mounts.

The rear ring on both the CZ and Burris ring sets have a lug that keeps the ring from slipping.
Either work fine and are very stable.